Interesting info there Mike, although of course also bad news for you since helicopters are among the noisiest aircraft to fly aren't they, especially when you have to fly them like you do with open doors etc. for hovering?
The headset for the pc was to be used for communication, like in flightsims or such, not for general use, I got a Sennheiser HD500 headphone for that, or I will have when I get a replacement cord since the original thin one is damaged so I don't get both channels, luckily it has plugs in both ends so it's easy to replace once I get one (so the whole headset doesn't get ripped off your head if you walk with them on and step on the cord, and let me tell you, it works!

).
Frank